Combination-tool



w. R. PETERS.

COMBINATION TOOL.

APPLICATION F-lLED JULY 8, I919.

1,331,368. Patented Feb. 17,1920.

UNITED STATES PATENT OFFICE.

WALTER R. PETERS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOFRANCIS B. BEDDALL, OF PHILADELPHIA, PENNSYLVANIA.

COMBINATION-TOOL.

Specification of Letters Patent.

Application filed July 8, 1919. Serial No. 309,282.

To all whom it may concern:

Be it known that I, WALTER R. a citizen of the United States, residingin Philadelphia, Pennsylvania, have invented Combination-Tools, of whichthe following is a specification.

My invention relates to combination tools, and the object of theinvention is to provide a device combining certain tools pertaining tothe carpenters trade with a saw of substantially standard form.

In the attached drawings:

Figure 1 is a view illustrating a tool embodying my invention;

Fig. 2 is a detail view in perspective of the miter attachment;

Fig. 3 is a vertical section of the miter attachment taken on line wa,Fig. 2.

Figs. 4 and 5 are views in perspective, showing details of the springand set-screw; and

PETERS,

of the tool.

With referenceto the drawings, 1 indicates a combination toolconstructed in accordance with my invention. In forming a tool I employa saw, the greater portion of the upper edge .2 of which is straight,and such edge being properly graduated may be utilized either as astraight edge or a scale. The saw may be of any desired length, but itis desirable that the length be such that the straight edge maybe'marked with a scale containing an even number of inches. Near thebuttof the saw a rounded projection 3 extends upwardly from the upper edgeof the saw, said projection being apertured at 4 for the reception of apivot .bolt 5, which carries a miter attachment 6 illustrated in Fig. 2.The miter attachment 6 has a centrally disposed slot 7 extending fromone end to a point short of the opposite end, in which latter end is thesaid pivot bolt 5. As indicated in Figs. 1 and 6, the miter attachmentis placed astraddle the upper edge of the saw blade and is held thereonby means of the pivot bolt 5, which extends through the aperture 4 inthe projection 3. At the lower end of the miter attachment is a set-bolt8, said set-bolt extending across the slot 7 and entering into threadedengagement with the opposite leg of the miter attachment. Apertures 9, 9are formed in the saw blade to accommodate the passage of this set-bolt8, the apertures being Fig. 6 is a partial view of a modified formdisposed so that the miter attachment may be held at certain specifiedangles.

As indicated in Fig. 1, the apertures 9, 9 permit of the miter beingheld in position, giving angles ranging from zero to 90. Apertures mayalso be provided as shown in Fig. 6 for the accommodation of a pitchscale which may be marked upon the blade of the saw on the side oppositeto "that upon which the degree scale is established. The pitch scale isillustrated in Fig. 6, which shows apertures 9, 9 so disposed as to giveinclinations of the miter attachment giving pitches from inch to 1 inch.In order to give the miter attachment the extent of swing required forscales of the described capacity, the top edge of the saw blade isdepressed at 10 for the reception of the upper end of the miter block,and this depression permits a movement of the miter attachment to theposition indicated by dotted lines in Fig. 1.

hen the saw itselfis to be used, the

miter attachment may be swung back so that pression upon the miter blockby means of a metal suitable order that the set bolt 8 may be held awayfrom the apertures 9, 9 when the miter block is being swung to a newangle, a spring 16 is provided, said spring having one end attached tothe miter block by means of a screw 17 while the other end is attachedin suitable mannen to -'the set-bolt 8. This spring 16 tends to hold theset-bolt in the position indicated in Fig. 2, in which position thelower end of the bolt is held well away from the slot 7 in the ticallevel 19 is placed upon the body of the handle 12 and is held thereon insubstantially the same manner that the level 13 is held upon the miterblock. This level 19 is mounted in a position paralleling the strai htedge 2, and it will be evident that this Fevel may be used inconjunction either with the said straight edge 2, or with the miterblock when the latter is placed so as to form an angle of 90 with thesaid straight guard 15 screwed or held in any manner to the miter block.In

miter block. A' veredge, and there is, therefore, no essential need fora level placed in the miter block itself.

The manipulation of the device will be apparent. When it is desiredtouse a saw for cutting, the miter block may be swung back within therecess provided for it in the body of the handle in which it can in noway interfere with the operation of the saw. The manipulation of themiter block is similar in every way to the manipulation of any tool ofthe sort, the necessary st 'aight edge bein provided by the upper edge 2of the saw lade, while the vertical and horizontal levels are providedby the levels 19 and 13 upon the saw handle and upon the miter blockrespectively; and also provision is made for the obtaining of the miterreading in terms of degrees of the angle or pitch that is desired.

In the modification shown in Fig. 6, the projection 3 is eliminated anda straight back saw of standard form is employed. In this form it isnecessary to enlarge the depression 10. which receives the upper end ofthe miter, this enlarged depression being indicated in Fig. 6 by thenumeral 10, it being necessary to modify the form of the handle as well,to provide for the necessary amount of travel of the miter block.

I claim:

1. A saw comprising a handle; a blade having a straight upper edgeattached to said handle; a miter block carrying a pivot; an aperture insaid blade for the reception of said pivot; a set-screw in the lower endof said miter block; a scale marked on said saw blade, said scale beingmarked along a segment of a circle of which the aperture carrying saidpivot is the center; apertures in the said saw blade to receive saidsetscrew in holding the miter block at the desired point on said scale;and a spring attached to said miter block and to said setscrew forholding said set-screw away from engagement with said apertures whilethe miter block is being moved to a new position.

2. A saw comprising a blade having a substantially straight upper edge,a handle attached to said blade, an apertured lug extending above theupper edge of said blade, a miter block carrying a pivot bolt, said boltbeing mounted within said apertured lug, a recess'within said handle forthe reception of the miter block, and means for retaining the miterblock at the desired angle with respect to the upper edge of the blade.

3. A saw comprising a handle, a blade having a straight upper edgeattached to said handle, an apertured lug extending above said upperstraight edge, a miter block carrying a pivot, said pivot being mountedon said apertured lug, a set-screw in the lower end of said miter block,a scale marked on said saw blade, said scale being marked along asegment of the circumference of a circle of which the aperture in saidlug is the center, and apertures in said saw blade to receive saidset-screw in holding the miter block at the desired point on said scale.

4. A saw comprising a blade having a substantially straight upper edge,a handle attached to said blade, a miter block pivoted to said blade atsaid upper edge. said miter block having a portion thereof extendingabove said upper edge and having portions thereof extending down eachside of said blade. and a depression in the upper edge of said blade foraccommodating the said upwardly extending portion of the miter when saidmiter is swung to the position in which it forms the least angle withthe said straight edge.

In witness whereof I aliix my signature.

WALTER R. PETERS.

